baber/WOPTO huggingface dataset:
Patent GB-1383780-A (GB)
Title: Rotary converter for converting dc current to ac current and  vice versa
IPC: H02M1/22
Filed: 1972-06-09
Abstract: 1383780 Converters REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 9 June 1972 [10 June 1971] 27174/72 Heading H2F [Also in Division H1] A mechanical, rotary converter for D.C.- A.C. and vice-versa comprises a central mandrel 1 of insulating material which is rotated in use, this having fixed on the surface two spaced apart conductive rings 3, 3<SP>1</SP>, the rings each having a substantially semi-cylindrical extension 2,2<SP>1</SP> facing into the spacing between the rings and arranged to provide small gaps in the axial direction of the mandrel between the two extensions, in each gap there being a contact stud 5, two brushes 4, 4<SP>1</SP> adapted to contact the rings 2,2<SP>1</SP> respectively and being connected to the D.C. circuit and two further brushes 6, 6<SP>1</SP> arranged diametrically opposite one another and connected to contact the semi-cylinders 2, 2<SP>1</SP> and being connected to the A.C. circuit, the width of the brushes 6, 6<SP>1</SP> relative to the axial gaps being such that both opposite edge portions are contacted simultaneously for a short time during rotation of the member 1 whereby the D.C. circuit is momentarily shorted, but opening of the D.C. circuit is prevented which would otherwise give rise to voltage surges when the load in the A.C. circuit is inductive. A capacitor is connected between each brush 6, 6<SP>1</SP> and each semi-cylinder 2, 2<SP>1</SP> and a resistor is connected between each stud 5 and the portion 2, 2<SP>1</SP> in front of the stud in the direction of rotation of the mandrel 1. For polyphase conversion, a plurality of pairs 6, 6<SP>1</SP>, 7, 7<SP>1</SP>, 8, 8<SP>1</SP> of brushes are placed at equal angle intervals as shown. The conductive parts of the apparatus are of copper alloyed with either 0À3% of chromium or 0À08% of silver.
Patent GB-1352228-A (GB)
Title: Circuit-breakers
IPC: H01H33/70
Filed: 1971-04-19
Abstract: 1352228 Gas blast switches MAGRINI FABBRICHE RIUNITE MAGRINI-SCARPA E MAGNANO MSM SpA 19 April 1971 [16 April 1970] 27198/71 Heading H1N A blast nozzle for an axial blast circuit breaker has a first convergent zone 1, a second cylindrical zone 5 and third divergent zone 9, the zone 9 being formed with a plurality of V-section grooves 13 as shown and the nozzle having two or more longitudinal channels 21 parallel to and symmetrically disposed around the axis of the chamber and extending along a major portion of the second zone 5 and continuing into the third zone 9. The nozzle is attached to and moves with the movable contact of the circuit breaker (not shown).
Patent GB-285827-A (GB)
Title: Improvements in and connected with electric torch lamps
IPC: F21V19/02
Filed: 1927-10-13
Abstract: 285,827. Neu, J. and Neuburger, J., (trading as Enn-Werke Neu & Neuburger). Feb. 22, 1927, [Convention date]. Addition to 281,233. Battery lamps. - In an electric torch of the kind described in the parent Specification, wherein a contact r<2> carried by the sliding bulbholder or reflector is adapted to slide along a conductor t and maintain contact therewith throughout the range of light-focusing adjustment, the sliding finger-piece w for effecting this adjustment is arranged in axial alignment with the switch v to facilitate their operation by a single finger of the hand holding the torch.
Patent GB-616614-A (GB)
Title: A nickel base alloy
IPC: C22C19/00
Filed: 1946-09-11
Abstract: A nickel base alloy has the following composition: Si 2.00-7.50 per cent; Al 2.00-7.50 per cent; C 0.03-1.50 per cent; Co 0-9.00 per cent; Zr 0-2.00 per cent; Ti 0-1.49 per cent; Nb 0-2.00 per cent; Mg 0-2.00 per cent; Fe 0-3.00 per cent; Ni, the remainder, being always greater than 80.00 per cent, but so that the sum of the Si and Al contents together with twice the square root of the content of Ti (if present) always exceeds 8.40 per cent of the Ni present in the alloy and the total of the elements Co, Zr, Ti, Nb, Mg and Fe, if any of these elements are present, is always between 0.02 per cent and 10.00 per cent.  The alloy may contain one or more of Mn, B, Be, Ba, Ca, V, Sn, Li, not exceeding 5.50 per cent in total, one or more of Cr, Mo, W, Cu, Ta, Ag, Te, Zn, Sb, Cd, Ce not exceeding 5.00 per cent in total, one or more of Bi, Pb, As, P, Tl, La, Ga, Th and Yt not exceeding 0.75 per cent in total, provided that the Ni content is always above 80.00 per cent.  The alloy may be age hardened at a temperature not exceeding 700 DEG C. for up to 30 hours.  If alkaline earth metals are absent, the alloy may be solution treated at a temperature above 1000 DEG C. for not more than 20 hours, which treatment may or may not be followed by ageing at a temperature not exceeding 750 DEG C. for not more than 30 hours.
Patent GB-189932-A (GB)
Title: Improvements in connection with plate-punching and like machines
IPC: B21D28/26
Filed: 1921-10-14
Abstract: 189,932. Curchin, H. W. Oct. 14, 1921. Punching.-A plate-punching or like machine is provided with an operating platform situated above the work in such a manner that the attendant can obtain a direct plan view of the work in the neighbourhood of the punch. Electrical, mechanical, manual or pedal mechanism, either separately or in combination and controlled from the platform may be used for positioning the work on the bed. Figs. 1 and 3 illustrate a punching-machine having a platform 4 with a control 7 which operates, through chain-gearing and shafting, a series of rollers 39, 34, 44, 49 on which the plate 8 is supported and by means of which it may be moved transversely. The frame on which these rollers are mounted is itself mounted on a pair of longitudinal rails 21 along which it may be adjusted by a control 6 operating, through similar chain-gearing, telescopic shafts 14, 15 and bevel gearing, a transverse shaft 19 carrying the driving wheels 20.
Patent GB-242305-A (GB)
Title: Improvements in talking machines
IPC: H04R7/00
Filed: 1925-10-30
Abstract: 242,305. W³st, A. Nov. 1, 1924, [Convention date]. Sound-boxes, multiple diaphragm; sound-box casings; tone-arms. - A gramophone or like sound-box is provided with two separate diaphragms mounted in the same casing, and two stylus-bars each connected to a diaphragm and both actuated by a single needle. As shown, the stylus-bars 5, attached to a cross-bar carrying the holder of the needle 7, are connected to diaphragms 2, and are united by a pin 11, surrounded by a tube. All parts of the sound-box except such smaller parts as the stylus-bars, are of non-metallic material, such as the substances known by the Trade Marks "Cellon" and " Galaith." The Specification as open to inspection under Sect. 91 (3) (a) also describes a gramophone having a sound-conduit from which metallic parts are eliminated as far as possible by making parts such as the tone-arm and horn, as well as the sound-box casing, of substances such as celluloid. A sound-box, shown in Fig. 7 (Cancelled) is also described in which the non-metallic casing 12 is cast or pressed as a single part. This subjectmatter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 24806/02, 13150/05, 13009/14, and 141,090.
Patent GB-951527-A (GB)
Title: Improvements in or relating to the preparation of mixed alkyl-aralkyl esters of phthalic acid
IPC: C08K5/12
Filed: 1962-07-17
Abstract: Alkyl aralkyl phthalates are prepared by reacting a potassium or lead salt of a mono-C1-12-alkyl phthalate with a benzyl halide (optionally substituted with alkyl or halogen) at an elevated temperature in presence of an aromatic hydrocarbon solvent boiling between 80 and 150 DEG C. and preferably in presence of a tertiary amine such as triethylamine.  The potassium or lead salt may be prepared by reacting the carbonate with the monoalkyl phthalate in the aromatic hydrocarbon solvent and subsequently removing the water formed e.g. by azeotropic distillation.  The examples describe the reaction of (1) and (2) potassium or lead n-butyl phthalate with benzyl chloride, (3) potassium n-butylphthalate with chloromethylated xylenes (giving the butyl-dimethylbenzyl phthalate), (4) and (5) potassium n-amyl or 2-ethylhexylphthalate with benzyl chloride, (6) and (7) potassium n-butyl phthalate with p-xylyl chloride or chloro-m-xylyl chloride.
Patent GB-1423062-A (GB)
Title: Wall service ducts
IPC: F16L3/26
Filed: 1973-06-08
Abstract: 1423062 Cable ducting; two part couplings TECHNILEC 8 June 1973 [13 June 1972] 27449/73 Headings H2C and H2E [Also in Division F2] Power connectors 12 have pins 11 to connect to power conductors 9, 10 running in a first channel 1 and are attached by hooks 13 engaging slots 7 in the cover 6. Other connectors 23, 32 are fixed in the same way but are connected to cables 22, 31 running in further channels 20, 30. The invention resides in the provision of a passage 21, 34 from the further channel 20 or 30 to the connector 23 or 32, this passage being concealed when the connector 23 or 32 is in position. The covers 18, 6, 27 snap into position. The conductors 9, 10 are carried by a block (B) (Fig. 3, not shown). In another embodiment (Fig. 2, not shown) the main channel 1 is at the top and a cable running in a lower channel (30 or 40) emerges through a slot (41) in the cover 27, the body (43) of a connector being extended downward to conceal the slot (41).
Patent GB-362538-A (GB)
Title: Improvements in and relating to gaseous discharge devices
IPC: H05B41/19
Filed: 1930-09-15
Abstract: 362,538. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Evans, W. A. D. ; 18, Hawthorne Place, Summit, New Jersey, U.S.A.) Sept. 15, 1930, No. 27498. Convention date, Sept. 13, 1929. [Class 39 (i).] A method of automatically starting and maintaining the discharge in a number of gaseous discharge tubes 1, consists in applying high frequency voltage to the tubes under the control of a time-lag device 18, 20, which permits the cathodes 2, 3 to attain operating temperature, the high-frequency source 21, 22, 23 being also controlled by a number of switches 15 in parallel, operated by the discharge current to de-energize the high-frequency apparatus during normal operation and energize it should the discharge in any of the devices 1 cease. The tubes 1 are energized from an autotransformer 7, and windings 9 supply the cathode heaters 3, the cathodes 2 each being connected through an electromagnet 5 to the mid-point of the transformer 7. The magnets 5 control mercury switches 15 in parallel in a circuit from the mid-point of the transformer 7 through a resistance 18 paralleled by a bi-metallic strip 20 and the primary 19 of a transformer to the end of the main transformer 7. The secondary 21 of the transformer 19 energizes a spark oscillator connected to external auxiliary electrodes 26 on each of the tubes 1. The resistance 18 prevents the operation of the oscillator 22 until its heat warps the strip 20 which short-circuits it after the cathodes have reached operating temperature, the high-frequency discharge followed by the main discharge then occurring in each tube and, through the electromagnets 5, opening the switches 15. The high-frequency discharge continues until all the tubes are alight and re-starts, after the time lag of the strip 20, if one of the tubes fail. In order to. eliminate the time lag in restarting the high-frequency discharge, the device 18, 20 may be paralleled by bi-metallic contacts in series, each operated by the cathode heat of a tube, in which case the resistance 18 is short-circuited as long as all the cathodes 2, 3 are hot. In a modification, for starting the tubes in succession, the external cathode to anode circuit of the second and succeeding tubes is completed only by a bi-metallic strip associated with a resistance in the discharge circuit of the preceding tube, the oscillator 20, 21 being de-energized after starting of the last tube. The method is also applicable with D.C. and Polyphase A.C.
Patent GB-1108854-A (GB)
Title: Smokeless mosquito fumigating material
IPC: A01M1/20
Filed: 1966-06-20
Abstract: A smokeless mosquito fumigating material, e.g. in the form of a coil or stick, comprises (a) a volatilizable insecticide such as pyrethrin and/or allethrin, (b) a powdered carbonized material of vegetable origin, (c) one or more adhesives, and (d) lead acetate and potassium nitrate, the components having been mixed with water, kneaded, moulded and then dried.  Component (c) may be carboxylmethylcellulose, gum arabic, dextrine, or starch. Optionally, benzene hexachloride may be present.
Patent GB-279124-A (GB)
Title: Improvements in devices for indicating the names of streets
IPC: E01F9/60
Filed: 1927-10-17
Abstract: 279,124. Labin, J., (trading as Labin & Co.). Oct. 16, 1926, [Convention date]. Signs.-A street name-plate consists of two box signs a arranged at an angle to one another and connected together by a centre piece b having a transparent advertisement-bearing face. Lamps c, c<1> are located in the piece b and signs a.
Patent GB-1358202-A (GB)
Title: Lubricant quantity  regulators for centralised pressure lubrication  installations
IPC: F16N27/00
Filed: 1971-06-11
Abstract: 1358202 Lubricating TECALEMIT SA 11 June 1971 [17 June 1970] 27596/71 Addition to 1358201 Heading F2A A lubricant quantity regulator for a centralized pressure lubrication system includes a lifting valve comprising a movable rigidbodied valve member 7 in a housing having an inlet orifice 14 through which lubricant coming from a pressurized supply line A enters the housing and proceeds to a metering device 2, the housing having an outlet orifice 8 through which lubricant, which returns to the housing while being dispensed by the metering device with the supply line unpressurized, leaves the housing on route to a point of lubrication. The arrangement is such that the pressure of lubricant from the supply line when pressurized causes the valve member to close the outlet orifice and to allow lubricant to proceed to the metering device, the pressure of lubricant returning to the housing causing the valve member to open the outlet orifice. The valve member is so dimensioned that lubricant proceeding to the metering device passes between the valve body and the housing.
Patent GB-205673-A (GB)
Title: Improvements in gaskets and like jointing members
IPC: F16J15/12
Filed: 1922-10-11
Abstract: 205,673. Yates, C. H. Oct. 11, 1922. Joint-making packing.-In a gasket having openings for both high and low-pressure fluids, primarily applicable for the joint between the cylinder block and the cylinder head or the inlet and exhaust pipes of an internal-combustion engine, the openings for high-pressure fluid are surrounded by strips or rings of jointing material wholly or partially sheathed in metal. The gasket may be a strip 1 of copper &c., the openings 2 for the cylinders and in some cases for the valves being surrounded by rings 6 of compressed asbestos enclosed in metal sheathings 7, which may be secured by bending them over the edges of the openings. The gasket may be associated with a layer 9 of compressed asbestos having the necessary openings. Specification 181,625 is referred to.
Patent GB-1369395-A (GB)
Title: Heald frames
IPC: D03C13/00
Filed: 1973-06-11
Abstract: 1369395 Heald frames GROB & CO AG 11 June 1973 [14 June 1972] 27640/73 Heading D1E A light alloy hollow heald frame stave 1 has an enclosed T sectioned groove 10, portions of a top wall 6 of which are machined away to allow fixing of a lifting hook 5 by means of bolts 8 entering an insert 9 slidable in the groove 10. (For Figures see next page)
Patent GB-382047-A (GB)
Title: Process for the manufacture of female sexual hormone
Filed: 1931-10-06
Abstract: Female sexual hormones are extracted from the urine of mares by precipitation with heavy metal salts, such as mercury, silver or lead acetate, or by adsorption on substances such as animal charcoal or by extraction with an organic solvent.  When the urine is extracted with organic solvent, it is preferably acidified and heated to boiling-point.  A preliminary extraction with ether may be followed by extraction with an organic solvent soluble in water.  When a heavy metal salt is used as precipitant the precipitate may be decomposed, e.g. by hydrogen sulphide, the hormone remaining in the solution, or it may be extracted with an organic solvent.  According to examples: 1. Urine is acidified, mixed with lead acetate and the precipitate formed filtered off, suspended in water and decomposed by hydrogen sulphide.  2. Mercury acetate is used as precipitant, and the precipitate is extracted with alcohol which is eliminated and the residue dissolved in water.  3. A precipitate obtained as in example 1 is digested with alcohol, which is then evaporated.  The residue is dissolved in a small quantity of alcohol, poured into an excess of acetone and the precipitate produced is filtered off.  The filtrate is concentrated, a solvent such as ethyl acetate, acetoacetic ester or ether and water is added and the mixture shaken in a funnel, the hormone remaining in the non-aqueous layer.  4. Silver acetate is added to the acidified urine and the precipitate filtered off, suspended in water and decomposed by hydrogen sulphide which is removed from the filtrate by passing air or carbon dioxide therethrough.  Reference has been directed by the Comptroller to Specifications 295,680, 298,610, and 310,056, [all in Class 81 (i), Disinfecting &c.].
Patent GB-887826-A (GB)
Title: Tape punch
Filed: 1959-08-14
Abstract: 887,826. Selective punching - machines. SELDEN, O. C. Aug. 12, 1960 [Aug. 14, 1959], No. 27843/59. Class 31 (2). A machine for recording coded information on a tape comprises a row of punching- pins 6 and a corresponding number of parallel longitudinallyslidable recessed selector bars 13 which are moved into operative position, against the action of springs 18, by selective energization of solenoids 17, the bars 13 being moved downwardly by means of a rod 12, when a rocker 1 is actuated, to depress the pins 6, and the depressed pins being returned upwardly, when the rocker returns to its initial position, by means of a rod 11 resiliently supported from the rod 12 engaging resilient rods 7, each passing through a hole 9 in a pin 6. The punching stroke is imparted to the rocker 1 by energization of a solenoid 32 and the return movement effected by a spring 33. A feed-punch actuating-bar 21 is connected to the shaft 2 of the rocker so that a feed-hole is punched in the tape at each punching stroke. The tape is advanced between punching strokes by means of a sprocket-wheel 22 engaging feed holes punched in the tape, the sprocket wheel being advanced stepwise by means of a ratchet wheel 23 engaged by a spring-influenced pawl 24 connected to the rocker. The ratchet wheel is held after each stepwise advance by a spring- influenced detent 28.
Patent GB-1210169-A (GB)
Title: Improvements in calendars
Inventor: COMBERTI PETER
IPC: G09D3/00
Filed: 1968-06-12
Abstract: 1,210,169. Calendars. P. COMBERTI. June 3, 1969 [June 12, 1968], No. 27846/68. Heading G3T. [Also in Division G1] A calendar comprises a block of sheets in the form of elongated strips 1 each displaying consecutively numbered days and the opposed longitudinal edges of each strip being graduated in inches and centimetres respectively. A sliding sleeve 8 is provided with a window 9 through which a selected day on a strip may be viewed. Twelve strips each displaying one calendar month are joined by a flap 2 through which a staple passes and each strip has perforations 3 to enable it to be torn from the block. Sundays may be provided with a distinguishing colour and the lower edge 10 of the sleeve enables centimetres to be converted into inches and vice versa.
Patent GB-1472660-A (GB)
Title: Silver halide photosensitive material
IPC: G03C7/00
Filed: 1974-06-24
Abstract: 1472660 Multi-layer photographic silver halide material KONISHIROKU PHOTO INDUSTRY CO Ltd 24 June 1974 [2 July 1973] 27875/74 Heading G2C A photographic silver halide material comprises a support bearing a blue-sensitive silver halide emulsion layer containing at least one yellow coupler of the formula:- where R 1  is cycloalkyl or optionally substituted alkyl, alkenyl, aryl or heterocyclyl; R 2  is CN or optionally substituted N-phenylcarbamyl; Y is CO, SO 2 , -N=, -CH= or -#C=; and Z completes a non-metallic 4 to 6-membered heterocyclic nucleus which may be substituted or fused to another ring or rings; a green-sensitive silver halide emulsion layer containing at least one magenta coupler of the formula:- where R 3  is H, halogen, NO 2 , alkyl, alkoxy or acylamine; R4 is H, halogen, NO 2  or a monovalent organic residue; and a red-sensitive silver halide emulsion layer containing at least one cyan coupler of the formula:- where R 5 , R 6  and R 7 , the same or different, are H, halogen, alkyl, aryl or alkoxy; R 8  and R 9 , the same or different, are H, alkyl or alkoxy; R 10  is H or alkyl; and X is an atom or group splittable on coupling; said three layers being formed on the support. Examples 1-4 disclose coupler and sensitizing dye combinations and Example 3 discloses coupler and development inhibitor releasing coupler combinations.
Patent GB-250853-A (GB)
Title: Improvements in steering-wheel brake mechanism
IPC: B60T11/04
Filed: 1925-04-03
Abstract: 250,853. Clark, D'A. M., (Bendix Brake Co.). April 3, 1925. Force - transmitting mechanism ; covers for brakes. - In steering-wheel brakes wherein the brake-operating rod is provided with a, universal joint at each end thereof, the hollow cam shaft 42 is supported in a cylindrical bore in a bearing 46, and the inner end of the brake-operating rod 58 is rounded and flattened and pivotally mounted by a pin 60 in upper and lower segmental members 62 having inner flat surfaces to engage, the flattened end of the rod, and cylindrical outer surfaces to engage a cylindrical cross-bore in the cam shaft 42. When the joint is assembled, the members 62 are held in place, by the bore in the support 46, and axial displacement of the pin 60 is prevented by the cross bore in the shaft 42. Since the axis of the pin, which is normally vertical, intersects the axis of the steering-pivot at an acute angle, the brake. on the outer front wheel will be eased when rounding a corner. A part spherical member 64 provided on the bearing 46 is engaged by part spherical members 66, 68. carried by the shaft 58 and held in position by a spring 70. The outer end of the rod 58 is slidably mounted in a sleeve 88 carrying part spherical members 90 96. which slidably engage a member 92 supported on the chassis frame 16, a spring 100. reacting between the. member 96 and a disc 98 carried by the sleeve, serving to hold the member 90, 96 in position with respect to themember 92. Specification 250,750 is referred to.